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Extremely Rare Cystoid from Ontario, Canada |
CYSTOIDS
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Stock Number XICY705 |
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Name:
Glyptocystella sp.
Age: Ordovician
Formation: Bobcaygeon Formation
Location: Ontario, Canada
Size: Cystoid is 0.9 inches long
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This is a wonderful primitive echinoderm. It is an extremely rare Glyptocystella sp. from the Ordovician of Canada. This cystoid has a large ovate theca with plates ornamented with irregular radiating ridges. The plates of the theca are beautifully displayed, and several of the large pore-rhombs are clearly defined. A long portion of the stem is also tightly attached to the theca. The inflated cystoid is fully free of matrix, which is also very rare. This is a very uncommon intact specimen of this highly collectible cystoid.
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